4. Telephonic communications
  5. With usage measurement
  6. Call charge metering or monitoring

Shiv K. Gupta

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Chemically synthesized artificial promoter for high level...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate

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Chemically synthesized artificial promoter for high level...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate

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Telecommunication call billing method and apparatus

Telephonic communications – Special services – Anonymous party
Patent

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Telephone call charge allocation arrangement

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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Profile ID: LFUS-PAI-P-588231

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